/*
* ################################################################################
* ### MIT License
* ################################################################################
* 
* Copyright (c) 2006-2011 Andy Turner
* 
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef __HALFEDGE_H__
#define __HALFEDGE_H__

#include "Mesh/MeshTypeDefs.h"
#include <ostream>

namespace AWT
{
   class HalfEdgeVertex;

   class HalfEdge
   {
      friend class HalfEdgeMesh;

   protected:
      HalfEdge();
      virtual ~HalfEdge();

   public:
      HalfEdge* getPair() const;
      void setPair(HalfEdge* p);

      HalfEdge* getPrevious();

      HalfEdge* getNext() const;
      void setNext(HalfEdge* e);

      HalfEdgeVertex* getVertex() const;
      void setVertex(HalfEdgeVertex* v);

      bool hasFace() const;

      MeshIndex getFace() const;
      void setFace(const MeshIndex f);

      bool isCrossable() const;
      void setCrossable(const bool c);

      MeshIndex getLabel() const;
      void setLabel(const MeshIndex v);

   protected:
      struct D;
      D* m_D;

   };

   extern bool halfEdgeVerbose;
   extern bool halfEdgePrintComment;
   std::ostream& operator<<(std::ostream& os, const HalfEdge& e);
}

#endif // __HALFEDGE_H__